Anne couldn′t concentrate ______ whatshe was doing while her family were watc...

作者: tihaiku 人气: - 评论: 0
问题 Anne couldn′t concentrate ______ whatshe was doing while her family were watching TV.
选项 A.to B.on C.for D.in
答案 B
解析 考查固定搭配。Concentrate on意为“集中注意力于,专心致志于”。句意为“她家人正在看电视,安妮不能集中注意力在自己正在做的事情上”。

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